Features of the Mammut Men's Alyeska 3/4 Tight 3/4-length insulating pants made from warm Polartec Power Stretch Pro material 3/4-length to reduce bulk in ski boots Smooth and low-profile around waist to reduce bulk and pressure under ski pants Easy-cAre and quick-drying Fabric Details Polartec Power Stretch Pro 57% Polyester, 33% Polyamide, 10% Elastane